Automatic production line for stamping vehicle door hinge

Abstract

The utility model discloses a car door hinge stamping processing automatic production line which comprises a vibration feeding disc, a punching stamping mechanism, a leveling stamping mechanism and a marking mechanism, a first transplanting platform is arranged between the vibration feeding disc and the punching stamping mechanism, and a second transplanting platform is arranged between the punching stamping mechanism and the leveling stamping mechanism. A third transplanting platform is arranged between the leveling stamping mechanism and the marking mechanism; the vibration feeding disc conveys door hinge blanks to the first transplanting platform, the first transplanting platform transfers the door hinge blanks into the punching and stamping mechanism, the punching and stamping mechanism conducts punching machining on the door hinge blanks, the second transplanting platform transfers the punched blanks into the leveling and stamping mechanism, and the leveling and stamping mechanism conducts leveling and stamping on the door hinge blanks. The leveling and punching mechanism is used for punching and leveling the mounting surface of the door hinge blank; the third transplanting platform takes out the leveled door hinge blank and conveys the leveled door hinge blank into a marking mechanism, and the marking mechanism carries out marking and discharging operation on a finished product workpiece; the production line can be used for automatically adjusting and marking, and the production efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile door hinge production equipment, and in particular relates to an automatic production line for stamping of automobile door hinges. Background Art

[0002] Automobile door hinges are responsible for connecting the door to the vehicle body, allowing the door to open and close freely. The mounting surface of the door hinge must be flat. If the door hinge is connected by bolts, the relative dimensions of the bolt mounting holes on the vehicle body and door components must be consistent and stable. Because door hinges must not only meet the requirements of smooth opening and closing when they first leave the factory, but also maintain stable performance after long-term use or after the door has been opened and closed a certain number of times, the material and quality of the door hinge are extremely important, directly affecting the service life and safety of the door, as well as the comfort and noise level of the door opening and closing. During the manufacturing process, existing automobile door hinges require punching on the hinge surface and maintaining a flat mounting surface. This typically requires multiple different processing steps and cannot be formed in one go. This not only results in low processing efficiency and high demand for manual operation, but also results in insufficient processing precision, large processing errors, and the tendency for errors and omissions to occur when transferring and repositioning the door hinge workpiece between multiple different processing equipment. This results in a low yield rate for the finished product, necessitating improvements to existing equipment. Summary of the Invention

[0003] In response to the above problems and technical requirements, the utility model provides an automatic production line for door hinge stamping, which can automatically punch, stamp, adjust and mark door hinge blanks, has high production efficiency, does not require manual assistance, and has high processing precision.

[0004] The technical solution of the present utility model is as follows: an automatic production line for stamping processing of vehicle door hinges, comprising a vibrating loading tray, a punching and stamping mechanism, a leveling and stamping mechanism and a marking mechanism, a first transferring platform is provided between the vibrating loading tray and the punching and stamping mechanism, a second transferring platform is provided between the punching and stamping mechanism and the leveling and stamping mechanism, and a third transferring platform is provided between the leveling and stamping mechanism and the marking mechanism; the vibrating loading tray conveys door hinge blanks to the first transferring platform, the first transferring platform transfers the door hinge blanks to the punching and stamping mechanism, the punching and stamping mechanism performs punching processing on the door hinge blanks, the second transferring platform transfers the punched blanks to the leveling and stamping mechanism, the leveling and stamping mechanism performs punching and leveling on the mounting surface of the door hinge blanks; the third transferring platform takes out the leveled door hinge blanks and conveys them to the marking mechanism, the marking mechanism performs marking and unloading operations on the finished workpieces.

[0005] Furthermore, the first transferring platform is provided with a first linear module, a first base plate, a first cylinder and a first transferring cross bar. The first linear module is arranged horizontally along the X-axis. The first base plate is provided on the first linear module. The first linear module can drive the first base plate to move horizontally left and right. The first cylinder and the first slide are installed longitudinally on the first base plate. The first transferring cross bar is connected to the front end of the first cylinder. The first transferring cross bar is also connected to the first slide. The first cylinder drives the first transferring cross bar to move forward and backward. The first transferring cross bar transfers the blank at the end of the vibrating loading tray to the punching and stamping mechanism.

[0006] Furthermore, the two ends of the first transplanting cross bar are fixedly connected to the first right clamp and the first left clamp, and the vibrating chute at the end of the vibrating loading tray extends vertically toward the direction of the first transplanting cross bar. The first transplanting cross bar can drive the first right clamp and the first left clamp to move laterally, and the first right clamp can clamp the blank at the end of the vibrating chute. The first right clamp and the first left clamp can adjust the clamping position along the Z axis and the Y axis; a tooling support is provided in the middle of the first transplanting platform, and the first right clamp puts the blank into the tooling support after taking the material, and the first left clamp takes out the blank from the tooling support and transfers the blank to the punching and stamping mechanism.

[0007] Furthermore, the punching mechanism includes a punching table, a punching upper die and a punching lower die. A punching cylinder is provided above the punching table, the punching lower die is arranged on the punching table, the punching upper die is connected to the bottom of the punching cylinder, a guide column is provided between the punching upper die and the punching lower die, a workpiece positioning groove is provided in the punching lower die, the door hinge blank is fixed and clamped in the workpiece positioning groove, a punch is provided in the punching upper die, and when the punching upper die and the punching lower die are closed, the punch punches the door hinge blank.

[0008] Furthermore, the second transferring platform is provided with a second linear module, a second base plate, a second cylinder and a second transferring cross bar, the second linear module is arranged horizontally along the X-axis, the second linear module is provided with a second base plate, the second linear module can drive the second base plate to move horizontally left and right, the second base plate is longitudinally installed with a second cylinder and a second slide, the second transferring cross bar is connected to the front end of the second cylinder, the second transferring cross bar is connected to the second slide at the same time, and the second cylinder drives the second transferring cross bar to move forward and backward; the two ends of the second transferring cross bar are respectively fixedly connected to the second right clamp and the second left clamp, and the second right clamp and the second left clamp can adjust the clamping position along the Z axis and the Y axis; a workpiece bracket and a hole inspection assembly are provided in the middle of the second transferring platform. When the second transferring cross bar moves back and forth along the X-axis, the second right clamp can grab the door hinge blank in the punching lower die and place it on the workpiece bracket. After the hole inspection assembly detects the punching holes on the blank, it is clamped by the second left clamp and placed in the leveling stamping mechanism.

[0009] Furthermore, the hole detection assembly includes a vertical bracket, a Y-axis screw module, a vertical cylinder and a hole detection pin. The vertical bracket is fixedly set on the second transplanting platform. A Y-axis screw module is provided on the top of the vertical bracket. The vertical cylinder is connected to the side of the Y-axis screw module. The Y-axis screw module drives the vertical cylinder to move along the Y-axis. A horizontal mounting plate is connected to the bottom of the vertical cylinder. A hole detection pin is provided at the bottom of the horizontal mounting plate. When the door hinge blank is placed on the workpiece bracket, the vertical cylinder can drive the hole detection pin to align with the stamped hole on the blank for size detection.

[0010] Furthermore, the leveling stamping mechanism includes a leveling stamping table, a leveling cylinder, a leveling upper die and a leveling lower die. The leveling stamping table is provided with a leveling lower die, and the leveling lower die is provided with a leveling groove for accommodating the workpiece, and positioning circular holes are provided on both sides of the leveling groove. The leveling cylinder is arranged above the leveling stamping table, and the bottom of the leveling cylinder is connected to the leveling upper die. The bottom surface of the leveling upper die is a smooth plane, and a positioning cylinder corresponding to the positioning circular hole is provided on the bottom surface. The second left clamp places the blank into the leveling groove, and the leveling cylinder drives the leveling upper die to close the die downward to level and press the upper surface of the blank.

[0011] Furthermore, the third transferring platform is provided with a third linear module, a third base plate, a third cylinder and a third transferring cross bar. The third linear module is arranged horizontally along the X-axis. The third linear module is provided with a third base plate. The third linear module can drive the third base plate to move horizontally left and right. The third cylinder and the third slide are installed longitudinally on the upper edge of the third base plate. The third transferring cross bar is connected to the front end of the third cylinder. The third transferring cross bar is also connected to the third slide. The third cylinder drives the third transferring cross bar to move forward and backward; the two ends of the third transferring cross bar are respectively fixedly connected to the third right clamp and the third left clamp; a positioning adjustment mechanism is provided in the middle of the third transferring platform. After the third right clamp takes out the workpiece in the leveling groove, it is placed in the positioning adjustment mechanism. After the positioning adjustment mechanism adjusts the position of the workpiece, it is taken out by the third left clamp and transferred to the marking mechanism for marking operation.

[0012] Furthermore, the positioning and adjustment mechanism includes a cylinder support plate, a lifting cylinder, a positioning cavity, a left tightening cylinder, a right tightening cylinder and a top cylinder. The cylinder support plate is connected to the third transplanting platform, the lifting cylinder is connected to the cylinder support plate, the top of the lifting cylinder is connected to the positioning cavity, the left tightening cylinder, the right tightening cylinder and the top cylinder are respectively arranged on the left, right and top of the positioning cavity, and the third right clamp will be inserted into the positioning cavity from the front side. The left tightening cylinder, the right tightening cylinder and the top cylinder respectively tighten the two side surfaces and the top surface of the workpiece to position the workpiece.

[0013] Furthermore, the third right clamp can adjust its position along the Y-axis and Z-axis, and the third right clamp can also flip the workpiece in the Y-axis direction, flipping the workpiece from a vertical state to a horizontal state; the third left clamp can adjust its position along the X-axis, and a rotating support is provided at the front end of the third left clamp, which can drive the clamped workpiece to rotate and adjust in the X-axis direction.

[0014] The beneficial effects of the present invention are as follows: the stamping production line can automatically load, punch and level door hinge blanks without manual operation throughout the process, and the processing efficiency is high; the three transfer platforms arranged between the punching and stamping mechanism, the leveling and stamping mechanism respectively take and put materials through three transfer cross bars, and clamping claws are respectively provided at both ends of the three transfer cross bars. Each time the transfer cross bar moves back and forth once, it can simultaneously take materials from the previous station and load materials from the next station. The loading and unloading actions are precise and efficient, and can fully cooperate with the rhythm of automatic processing; a tooling support is provided in the middle of the first transfer platform, a workpiece bracket and a hole inspection component are provided in the middle of the second transfer platform, and a positioning adjustment mechanism is provided in the middle of the third transfer platform. The above three components can be used as loading waiting stations, and can also position, adjust or detect the workpiece during the loading and waiting process, complete the detection of the previous processing step of the workpiece, improve the processing accuracy, and ensure the yield rate of the finished workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structure diagram of the automatic production line for stamping door hinges of the utility model;

[0016] Figure 2 This is a structural diagram of the vibrating loading tray and the first transplanting platform;

[0017] Figure 3 It is the structural diagram of the punching and stamping mechanism;

[0018] Figure 4 This is the structural diagram of the second transplanting platform;

[0019] Figure 5 This is a structural diagram of the inspection hole assembly on the second transplanting platform;

[0020] Figure 6 This is the structural diagram of the leveling punching mechanism;

[0021] Figure 7 This is the structural diagram of the third transplanting platform;

[0022] Figure 8 This is a structural diagram of the positioning adjustment mechanism on the third transplanting platform;

[0023] Marked in the figure: vibration loading tray 1, vibration chute 11, first transfer platform 2, first linear module 21, first base plate 22, first cylinder 23, first slide 24, first transfer cross bar 25, first right clamp 251, first left clamp 252, tooling support 26, punching and stamping mechanism 3, punching table 31, punching upper die 32, punch 321, punching lower die 33, workpiece positioning groove 331, punching cylinder 34, guide column 35, second transfer platform 4, second linear module 41, second base plate 42, second cylinder 43, second slide 44, second transfer cross bar 45, second right clamp 451, second left clamp 452, tooling bracket 46, hole detection assembly 47, vertical bracket 471, Y-axis wire Bar module 472, vertical cylinder 473, horizontal mounting plate 474, hole detection pin 475, leveling stamping mechanism 5, leveling stamping table 51, leveling cylinder 52, leveling upper die 53, positioning cylinder 531, leveling lower die 54, leveling groove 541, positioning circular hole 542, third transplanting platform 6, third linear module 61, third base plate 62, third cylinder 63, third slide 64, third transplanting cross bar 65, third right clamping jaw 651, third left clamping jaw 652, rotating support 6521, positioning adjustment mechanism 66, cylinder support plate 661, lifting cylinder 662, positioning cavity 663, left tightening cylinder 664, right tightening cylinder 665, top cylinder 666, marking mechanism 7, door hinge blank 8. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-8 The figure shows the automatic production line for stamping processing of vehicle door hinges of the present invention, which includes a vibrating loading tray 1, a punching and stamping mechanism 3, a leveling and stamping mechanism 5 and a marking mechanism 7. A first transferring platform 2 is provided between the vibrating loading tray 1 and the punching and stamping mechanism 3, a second transferring platform 4 is provided between the punching and stamping mechanism 3 and the leveling and stamping mechanism 5, and a third transferring platform 6 is provided between the leveling and stamping mechanism 5 and the marking mechanism 7; the vibrating loading tray 1 transports the door hinge blank 8 to the first transferring platform 2, the first transferring platform 2 transfers the door hinge blank 8 to the punching and stamping mechanism 3, the punching and stamping mechanism 3 punches the door hinge blank, the second transferring platform 4 transfers the punched blank to the leveling and stamping mechanism 5, the leveling and stamping mechanism 5 punches and level the mounting surface of the door hinge blank 8; the third transferring platform 6 takes out the leveled door hinge blank and transports it to the marking mechanism 7, the marking mechanism 7 performs marking and unloading operations on the finished workpiece.

[0026] The first transfer platform 2 is provided with a first linear module 21, a first base plate 22, a first cylinder 23 and a first transfer cross bar 25. The first linear module 21 is arranged horizontally along the X-axis. The first linear module 21 is provided with a first base plate 22. The first linear module 21 can drive the first base plate 22 to move horizontally left and right. The first cylinder 23 and the first slide 24 are longitudinally installed on the first base plate 22. The first transfer cross bar 25 is connected to the front end of the first cylinder 23. The first transfer cross bar 25 is also connected to the first slide 24. The first cylinder 23 drives the first transfer cross bar 25 to move back and forth. The first transfer cross bar 25 transfers the blank at the end of the vibrating loading tray 1 to the punching and stamping mechanism 3. The two ends of the first transplanting cross bar 25 are fixedly connected to the first right clamping jaw 251 and the first left clamping jaw 252 respectively. The vibrating chute 11 at the end of the vibrating loading tray 1 extends vertically toward the first transplanting cross bar 25. The first transplanting cross bar 25 can drive the first right clamping jaw 251 and the first left clamping jaw 252 to move laterally. The first right clamping jaw 251 can clamp the blank at the end of the vibrating chute 11. The first right clamping jaw 251 and the first left clamping jaw 252 can adjust the clamping position along the Z axis and Y axis; a tooling support 26 is provided in the middle of the first transplanting platform 2. After the first right clamping jaw 251 takes the material, it places the blank into the tooling support 26. The first left clamping jaw 252 takes the blank out of the tooling support 26 and transfers the blank to the punching and stamping mechanism 3.

[0027] The punching mechanism 3 includes a punching table 31, a punching upper die 32 and a punching lower die 33. A punching cylinder 34 is provided above the punching table 31. The punching lower die 33 is arranged on the punching table 31. The punching upper die 32 is connected to the bottom of the punching cylinder 34. A guide column 35 is provided between the punching upper die 32 and the punching lower die 33. A workpiece positioning groove 331 is provided in the punching lower die 33. The door hinge blank 8 is fixed and clamped in the workpiece positioning groove 331. A punch 321 is provided in the punching upper die 32. When the punching upper die 32 and the punching lower die 33 are closed, the punch 321 punches the door hinge blank 8.

[0028] The second transplanting platform 4 is provided with a second linear module 41, a second base plate 42, a second cylinder 43 and a second transplanting cross bar 45. The second linear module 41 is arranged horizontally along the X-axis. The second linear module 41 is provided with a second base plate 42. The second linear module 41 can drive the second base plate 42 to move horizontally left and right. The second base plate 42 is longitudinally installed with a second cylinder 43 and a second slide 44. The second transplanting cross bar 45 is connected to the front end of the second cylinder 43. The second transplanting cross bar 45 is also connected to the second slide 44. The second cylinder 43 drives the second transplanting cross bar 45 to move forward and backward ; The two ends of the second transplanting cross bar 45 are fixedly connected to the second right clamping jaw 451 and the second left clamping jaw 452, respectively. The second right clamping jaw 451 and the second left clamping jaw 452 can adjust the clamping position along the Z axis and the Y axis; a workpiece bracket 46 and a hole inspection component 47 are provided in the middle of the second transplanting platform 4. When the second transplanting cross bar 45 moves back and forth along the X axis, the second right clamping jaw 451 can grab the door hinge blank 8 in the punching lower die 33 and place it on the workpiece bracket 46. After the hole inspection component 47 detects the punching holes on the blank, it is clamped by the second left clamping jaw 452 and placed in the leveling stamping mechanism 5. The hole detection assembly 47 includes a vertical bracket 471, a Y-axis screw module 472, a vertical cylinder 473 and a hole detection pin 475. The vertical bracket 471 is fixedly set on the second transplanting platform 4. The Y-axis screw module 472 is provided on the top of the vertical bracket 471. The vertical cylinder 471 is connected to the side of the Y-axis screw module 472. The Y-axis screw module 472 drives the vertical cylinder 471 to move along the Y-axis. The bottom of the vertical cylinder 473 is connected to a horizontal mounting plate 474. The bottom of the horizontal mounting plate 474 is provided with a hole detection pin 475. When the door hinge blank 8 is placed on the workpiece bracket 46, the vertical cylinder 473 can drive the hole detection pin 475 to align with the stamping hole on the blank for size detection.

[0029] The leveling and punching mechanism 5 includes a leveling and punching platform 51, a leveling cylinder 52, a leveling upper die 53 and a leveling lower die 54. The leveling and punching platform 51 is provided with a leveling lower die 54, and the leveling lower die 54 is provided with a leveling groove 541 for accommodating the workpiece. Positioning circular holes 542 are provided on both sides of the leveling groove 541. The leveling cylinder 52 is arranged above the leveling and punching platform 51, and the bottom of the leveling cylinder 52 is connected to the leveling upper die 53. The bottom surface of the leveling upper die 53 is a smooth plane, and a positioning cylinder 531 corresponding to the positioning circular hole is provided on the bottom surface. The second left clamping jaw 452 places the blank into the leveling groove 541, and the leveling cylinder 52 drives the leveling upper die 53 to close the mold downward to level and press the upper surface of the blank.

[0030] The third transferring platform 6 is provided with a third linear module 61, a third base plate 62, a third cylinder 63 and a third transferring cross bar 64. The third linear module 61 is arranged horizontally along the X-axis, and the third linear module 61 is provided with a third base plate 62. The third linear module 61 can drive the third base plate 62 to move horizontally left and right. The third cylinder 63 and the third slide 64 are longitudinally installed on the third base plate 62. The third transferring cross bar 65 is connected to the front end of the third cylinder 63. The third transferring cross bar 65 is also connected to the third slide 64. The third cylinder 63 drives the third transferring cross bar 65 to move back and forth; the two ends of the third transferring cross bar 65 are respectively fixedly connected to the third right clamping jaw 651 and the third left clamping jaw 652; a positioning adjustment mechanism 66 is provided in the middle of the third transferring platform 6. After the third right clamping jaw 651 takes out the workpiece in the leveling groove 541, it is placed in the positioning adjustment mechanism 66. After the positioning adjustment mechanism 66 adjusts the position of the workpiece, it is taken out by the third left clamping jaw 652 and transferred to the marking mechanism 7 for marking operation. The positioning and adjustment mechanism 66 includes a cylinder support plate 661, a lifting cylinder 662, a positioning cavity 663, a left tightening cylinder 664, a right tightening cylinder 665 and a top cylinder 666. The cylinder support plate 661 is connected to the third transplanting platform 6, the lifting cylinder 662 is connected to the cylinder support plate 661, and the top of the lifting cylinder 662 is connected to the positioning cavity 663. The left tightening cylinder 664, the right tightening cylinder 665 and the top cylinder 666 are respectively arranged on the left, right and top of the positioning cavity 663. The third right clamp will be inserted into the positioning cavity 663 from the front side. The left tightening cylinder 664, the right tightening cylinder 665 and the top cylinder 666 respectively tighten the two side surfaces and the top surface of the workpiece to position the workpiece.

[0031] The third right clamping jaw 651 can adjust its position along the Y-axis and the Z-axis, and the third right clamping jaw 651 can also flip the workpiece in the Y-axis direction, flipping the workpiece from a vertical state to a horizontal state; the third left clamping jaw 652 can adjust its position along the X-axis, and a rotating support 6521 is provided at the front end of the third left clamping jaw 652, which can drive the clamped workpiece to rotate and adjust in the X-axis direction.

[0032] The action process of this utility model:

[0033] The vibrating loading tray 1 conveys the door hinge blank forward through the vibrating chute 11. The first transferring crossbar 25 moves rightward. The first right clamping jaw 251 clamps the door hinge blank 8 and then moves leftward to place the door hinge blank 8 on the tooling support 26. The first transferring crossbar 25 moves rightward again to take the material. At the same time, the first left clamping jaw 252 takes the material from the tooling support 26. With the next left movement, the door hinge blank 8 is placed into the workpiece positioning groove 331 of the punching lower die. The workpiece positioning groove 331 clamps the door hinge blank 8. The punching cylinder 34 drives the punching upper die 32 to close the die 33 downward, and the punch 321 punches the door hinge blank 8.

[0034] After punching is completed, the second transfer crossbar 45 moves to the right, and the second right clamping jaw 451 takes out the punched blank from the workpiece positioning groove 331. The second transfer crossbar 45 moves to the left, and the blank is placed on the tooling bracket 46. The hole inspection component 47 performs aperture inspection on the punched holes of the blank. When the second transfer crossbar 45 moves to the right again, the second left clamping jaw 452 takes the material from the tooling bracket 46 and transfers the inspected blank to the leveling groove 541 of the leveling lower die 54. The leveling cylinder 52 drives the leveling upper die 53 to punch downward to punch and level the mounting surface of the blank.

[0035] After leveling is completed, the third transferring cross bar 65 moves to the right, and the third right clamping jaw 651 takes out the leveled blank from the leveling groove 541. As the third transferring cross bar 65 moves to the left, the third right clamping jaw 651 flips the blank in the Y-axis direction, so that the blank changes from a vertical state to a horizontally lying state, and the third right clamping jaw 651 inserts the blank into the positioning cavity, and the lifting cylinder 662 adjusts the height of the blank, and the left tightening cylinder 664, the right tightening cylinder 665 and the top cylinder 666 respectively tighten the two side surfaces and the top surface of the workpiece to position the workpiece. After positioning is completed, the left tightening cylinder 664, the right tightening cylinder 665 and the top cylinder 666 are reset to release the workpiece; as the third transferring cross bar 65 moves to the right again, the third left clamping jaw 652 takes out the positioned workpiece, the rotating support 6521 rotates and adjusts the workpiece, and the third left clamping jaw 652 sends the workpiece into the marking mechanism 7 for marking and blanking.

[0036] The above descriptions are merely some preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes and substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. Door hinge stamping automatic production line, characterized by: It includes a vibrating loading tray, a punching and stamping mechanism, a leveling and stamping mechanism and a marking mechanism. A first transferring platform is provided between the vibrating loading tray and the punching and stamping mechanism, a second transferring platform is provided between the punching and stamping mechanism and the leveling and stamping mechanism, and a third transferring platform is provided between the leveling and stamping mechanism and the marking mechanism. The vibrating loading tray transports the door hinge blank to the first transferring platform, the first transferring platform transfers the door hinge blank to the punching and stamping mechanism, the punching and stamping mechanism performs punching processing on the door hinge blank, the second transferring platform transfers the punched blank to the leveling and stamping mechanism, the leveling and stamping mechanism performs punching and leveling on the installation surface of the door hinge blank. The third transferring platform takes out the leveled door hinge blank and transports it to the marking mechanism, the marking mechanism performs marking and unloading operations on the finished workpiece.

2. The automatic production line for stamping door hinges according to claim 1, characterized in that: The first transferring platform is provided with a first linear module, a first base plate, a first cylinder and a first transferring cross bar. The first linear module is arranged horizontally along the X-axis. The first base plate is provided on the first linear module. The first linear module can drive the first base plate to move horizontally left and right. The first cylinder and the first slide are installed longitudinally on the first base plate. The first transferring cross bar is connected to the front end of the first cylinder. The first transferring cross bar is also connected to the first slide. The first cylinder drives the first transferring cross bar to move forward and backward. The first transferring cross bar transfers the blank at the end of the vibrating loading tray to the punching and stamping mechanism.

3. The automatic production line for stamping door hinges according to claim 2, characterized in that: The two ends of the first transplanting cross bar are respectively fixedly connected to the first right clamping jaw and the first left clamping jaw, and the vibrating chute at the end of the vibrating loading tray extends vertically toward the direction of the first transplanting cross bar. The first transplanting cross bar can drive the first right clamping jaw and the first left clamping jaw to move laterally, and the first right clamping jaw can clamp the blank at the end of the vibrating chute. The first right clamping jaw and the first left clamping jaw can adjust the clamping position along the Z axis and the Y axis; a tooling support is provided in the middle of the first transplanting platform. After the first right clamping jaw takes the material, it places the blank into the tooling support. The first left clamping jaw takes the blank out of the tooling support and transfers the blank to the punching and stamping mechanism.

4. The automatic production line for stamping door hinges according to claim 3, characterized in that: The punching mechanism includes a punching table, a punching upper die and a punching lower die. A punching cylinder is provided above the punching table. The punching lower die is arranged on the punching table. The punching upper die is connected to the bottom of the punching cylinder. A guide column is provided between the punching upper die and the punching lower die. A workpiece positioning groove is provided in the punching lower die. The door hinge blank is fixed and clamped in the workpiece positioning groove. A punch is provided in the punching upper die. When the punching upper die and the punching lower die are closed, the punch punches the door hinge blank.

5. The automatic production line for stamping door hinges according to claim 4, characterized in that: The second transferring platform is provided with a second linear module, a second base plate, a second cylinder and a second transferring cross bar, the second linear module is arranged horizontally along the X-axis, the second linear module is provided with a second base plate, the second linear module can drive the second base plate to move horizontally left and right, the second base plate is longitudinally installed with a second cylinder and a second slide, the second transferring cross bar is connected to the front end of the second cylinder, the second transferring cross bar is also connected to the second slide, and the second cylinder drives the second transferring cross bar to move forward and backward; the two ends of the second transferring cross bar are fixedly connected to the second right clamping jaw and the second left clamping jaw respectively, and the second right clamping jaw and the second left clamping jaw can adjust the clamping position along the Z axis and the Y axis; a workpiece bracket and a hole inspection assembly are provided in the middle of the second transferring platform. When the second transferring cross bar moves back and forth along the X-axis, the second right clamping jaw can grab the door hinge blank in the punching lower die and place it on the workpiece bracket. After the hole inspection assembly detects the punching holes on the blank, it is clamped by the second left clamping jaw and placed in the leveling stamping mechanism.

6. The automatic production line for stamping door hinges according to claim 5, characterized in that: The hole detection assembly includes a vertical bracket, a Y-axis screw module, a vertical cylinder and a hole detection pin. The vertical bracket is fixedly set on the second transplanting platform. A Y-axis screw module is provided on the top of the vertical bracket. The vertical cylinder is connected to the side of the Y-axis screw module. The Y-axis screw module drives the vertical cylinder to move along the Y-axis. A horizontal mounting plate is connected to the bottom of the vertical cylinder. A hole detection pin is provided at the bottom of the horizontal mounting plate. When the door hinge blank is placed on the workpiece bracket, the vertical cylinder can drive the hole detection pin to align with the stamping hole on the blank for size detection.

7. The automatic production line for stamping door hinges according to claim 6, characterized in that: The leveling stamping mechanism includes a leveling stamping table, a leveling cylinder, a leveling upper die and a leveling lower die. The leveling stamping table is provided with a leveling lower die, and the leveling lower die is provided with a leveling groove for accommodating the workpiece. Positioning circular holes are provided on both sides of the leveling groove. The leveling cylinder is arranged above the leveling stamping table, and the bottom of the leveling cylinder is connected to the leveling upper die. The bottom surface of the leveling upper die is a smooth plane, and a positioning cylinder corresponding to the positioning circular hole is provided on the bottom surface. The second left clamping jaw places the blank into the leveling groove, and the leveling cylinder drives the leveling upper die to close the die downward to level and press the upper surface of the blank.

8. The automatic production line for stamping door hinges according to claim 7, characterized in that: The third transferring platform is provided with a third linear module, a third base plate, a third cylinder and a third transferring cross bar. The third linear module is arranged horizontally along the X-axis. The third base plate is provided on the third linear module. The third linear module can drive the third base plate to move horizontally left and right. The third cylinder and the third slide are installed longitudinally on the upper edge of the third base plate. The third transferring cross bar is connected to the front end of the third cylinder. The third transferring cross bar is also connected to the third slide. The third cylinder drives the third transferring cross bar to move forward and backward; the two ends of the third transferring cross bar are respectively fixedly connected to the third right clamp and the third left clamp; a positioning adjustment mechanism is provided in the middle of the third transferring platform. After the third right clamp takes out the workpiece in the leveling groove, it is placed in the positioning adjustment mechanism. After the positioning adjustment mechanism adjusts the position of the workpiece, it is taken out by the third left clamp and transferred to the marking mechanism for marking operation.

9. The automatic production line for stamping door hinges according to claim 8, characterized in that: The positioning and adjustment mechanism includes a cylinder support plate, a lifting cylinder, a positioning cavity, a left tightening cylinder, a right tightening cylinder and a top cylinder. The cylinder support plate is connected to the third transplanting platform, the lifting cylinder is connected to the cylinder support plate, and the top of the lifting cylinder is connected to the positioning cavity. The left tightening cylinder, the right tightening cylinder and the top cylinder are respectively arranged on the left, right and top of the positioning cavity. The third right clamp will be inserted into the positioning cavity from the front side. The left tightening cylinder, the right tightening cylinder and the top cylinder respectively tighten the two side surfaces and the top surface of the workpiece to position the workpiece.

10. The automatic production line for stamping door hinges according to claim 9, characterized in that: The third right clamping jaw can adjust its position along the Y-axis and the Z-axis, and the third right clamping jaw can also flip the workpiece in the Y-axis direction, flipping the workpiece from a vertical state to a horizontal state; the third left clamping jaw can adjust its position along the X-axis, and a rotating support is provided at the front end of the third left clamping jaw, which can drive the clamped workpiece to rotate and adjust in the X-axis direction.

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